Jim Harbaugh and Jim Schwartz

Jim Harbaugh and Jim Schwartz

Andrew Weber/US Presswire

San Francisco 49ers head coach Jim Harbaugh (left) fights with Detroit Lions head coach Jim Schwartz after the game at Ford Field. The NFL announced that neither coach would be fined for the altercation.

San Francisco 49ers head coach Jim Harbaugh (left) fights with Detroit Lions head coach Jim Schwartz after the game at Ford Field. The NFL announced that neither coach would be fined for the altercation. (Andrew Weber/US Presswire)

San Francisco 49ers head coach Jim Harbaugh (left) fights with Detroit Lions head coach Jim Schwartz after the game at Ford Field. The NFL announced that neither coach would be fined for the altercation.